package com.imooc.service;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import java.util.concurrent.CopyOnWriteArraySet;

/**
 * WebSocket
 *
 * @author leon.cheng
 * @date 2018/11/28 11:03
 **/
@Component
@ServerEndpoint("/webSocket")
@Slf4j
public class WebSocket {
    private Session session;
    private static CopyOnWriteArraySet<WebSocket> webSocketSet=new CopyOnWriteArraySet<>();
    @OnOpen
    public void onOpen(Session session)
    {
        this.session=session;
        webSocketSet.add(this);
        log.info("【websocket消息】有新的连接，总数:{}",webSocketSet.size());
    }
    @OnClose
    public void onClose()
    {
        webSocketSet.remove(this);
        log.info("【websocket消息】连接断开，总数:{}",webSocketSet.size());
    }
    @OnMessage
    public void onMessage(String message)
    {
        log.info("【websocket消息】收到客户端发来的消息:{}",message);
    }
    public void sendMessage(String message)
    {
        for (WebSocket webSocket:webSocketSet)
        {
            log.info("【websocket消息】广播消息，message={}",message);
            try {
                webSocket.session.getBasicRemote().sendText(message);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}
